# Examples Overview

Ready-to-run projects that demonstrate real-world use cases across every Perplexity API. Each example includes complete setup instructions and working code.

## Choosing the Right Example

| If you want to...                                          | Use this example                                                                                          | API                    | Language           |
| ---------------------------------------------------------- | --------------------------------------------------------------------------------------------------------- | ---------------------- | ------------------ |
| Conduct deep web research                                  | [Agent Research Assistant](/guides/cookbook-2-cookbook-examples-agent-research-assistant)                 | Agent API              | Python, TypeScript |
| Compare models across providers                            | [Model Comparison](/guides/cookbook-2-cookbook-examples-model-comparison)                                 | Agent API              | Python             |
| Monitor news topics in real time                           | [Search News Monitor](/guides/cookbook-2-cookbook-examples-search-news-monitor)                           | Search API             | Python, TypeScript |
| Build a document Q\&A system                               | [Document Q\&A](/guides/cookbook-2-cookbook-examples-document-qa)                                         | Embeddings + Agent API | Python             |
| Build a TypeScript CLI agent                               | [TypeScript Agent CLI](/guides/cookbook-2-cookbook-examples-typescript-agent-cli)                         | Agent API              | TypeScript         |
| Analyze images with web context                            | [Image Analysis](/guides/cookbook-2-cookbook-examples-image-analysis)                                     | Agent API              | Python, TypeScript |
| Ask questions about uploaded files                         | [File Attachment Q\&A](/guides/cookbook-2-cookbook-examples-file-attachment-qa)                           | Agent API              | Python             |
| Search SEC filings for financial data                      | [SEC Filing Search](/guides/cookbook-2-cookbook-examples-sec-filing-search)                               | Agent API              | Python             |
| Run code and build a PDF in a sandbox                      | [Competitor Buzz Tracker](/guides/cookbook-2-cookbook-examples-competitor-buzz-tracker)                   | Agent API              | Python             |
| Source candidates for a hiring brief                       | [Talent Sourcer](/guides/cookbook-2-cookbook-examples-talent-sourcer)                                     | Agent API              | Python             |
| Enrich a customer row with validated professional evidence | [Enrich Customer Data with Agent API](/guides/cookbook-2-cookbook-examples-customer-enrichment-agent-api) | Agent API              | Python             |
| Pick an open model via an MCP server                       | [Model Picker](/guides/cookbook-2-cookbook-examples-model-picker)                                         | Agent API              | Python             |

## By API

### Agent API

::::card-grid
:::card{title="Agent Research Assistant" href="/guides/cookbook-2-cookbook-examples-agent-research-assistant" icon="magnifying-glass"}
Deep web research using the `medium` preset with structured report output.
:::

:::card{title="Model Comparison" href="/guides/cookbook-2-cookbook-examples-model-comparison" icon="chart-bar"}
Compare responses from 5 providers side-by-side — quality, latency, and cost.
:::

:::card{title="TypeScript Agent CLI" href="/guides/cookbook-2-cookbook-examples-typescript-agent-cli" icon="terminal"}
Interactive TypeScript CLI with streaming, model selection, and web search.
:::

:::card{title="Image Analysis" href="/guides/cookbook-2-cookbook-examples-image-analysis" icon="image"}
Vision + web search for context-enriched image analysis.
:::

:::card{title="File Attachment Q&A" href="/guides/cookbook-2-cookbook-examples-file-attachment-qa" icon="file-lines"}
Upload documents and ask questions about them with optional web search enrichment.
:::

:::card{title="Competitor Buzz Tracker" href="/guides/cookbook-2-cookbook-examples-competitor-buzz-tracker" icon="chart-line"}
Two chained agent requests: the sandbox searches and counts each brand's share of voice, then renders a downloadable bar-chart PDF.
:::

:::card{title="Talent Sourcer" href="/guides/cookbook-2-cookbook-examples-talent-sourcer" icon="users"}
Wide search in a sandbox: source engineers by skill, location, and tenure, verify each, and rank them with their GitHub and profile links into an HTML shortlist.
:::

:::card{title="Customer Enrichment" href="/guides/cookbook-2-cookbook-examples-customer-enrichment-agent-api" icon="database"}
Read one ClickHouse customer row, validate the selected People Search result ID, and append a source-backed enrichment run.
:::

:::card{title="Model Picker" href="/guides/cookbook-2-cookbook-examples-model-picker" icon="robot"}
Connect the Hugging Face MCP server and web search in one request: find open models on the live Hub, verify their downloads and license, and check benchmarks before recommending one.
:::
::::

### Search API

::::card-grid
:::card{title="Search News Monitor" href="/guides/cookbook-2-cookbook-examples-search-news-monitor" icon="newspaper"}
Multi-topic news monitoring with domain filtering and recency control.
:::

:::card{title="SEC Filing Search" href="/guides/cookbook-2-cookbook-examples-sec-filing-search" icon="file-invoice"}
Search SEC.gov and EDGAR for financial filings with structured data extraction.
:::
::::

### Embeddings API

::::card-grid
:::card{title="Document Q&A" href="/guides/cookbook-2-cookbook-examples-document-qa" icon="file-lines"}
Self-contained RAG system with contextualized embeddings and Agent API answer generation.
:::
::::

## API Key Setup

All examples require a Perplexity API key. Set it as an environment variable:

```bash theme={null}
export PERPLEXITY_API_KEY="your-api-key-here"
```

:::callout{intent="tip"}
Get your API key at [perplexity.ai/account/api](https://perplexity.ai/account/api).
:::

## Common Requirements

- **Python 3.9+** or **Node.js 18+** (depending on the example)
- **Perplexity API Key**
- **Internet connection** for API calls

Additional requirements vary by example and are listed in each project's documentation.

## Contributing

Found a bug or want to add an example? See our [Contributing Guidelines](https://github.com/ppl-ai/api-cookbook/blob/main/CONTRIBUTING.md).

## Related pages

- [Document Q&A with Embeddings](./cookbook-2-cookbook-examples-document-qa.md)
- [Agent Research Assistant](./cookbook-2-cookbook-examples-agent-research-assistant.md)
- [Equity Research Brief](./cookbook-2-cookbook-examples-equity-research-brief.md)
- [TypeScript Agent CLI](./cookbook-2-cookbook-examples-typescript-agent-cli.md)
- [Image Analysis](./cookbook-2-cookbook-examples-image-analysis.md)
- [Multi-Provider Model Comparison](./cookbook-2-cookbook-examples-model-comparison.md)
- [Document Q&A](./cookbook-2-cookbook-examples-file-attachment-qa.md)
- [Search News Monitor](./cookbook-2-cookbook-examples-search-news-monitor.md)
- [SEC Filing Search](./cookbook-2-cookbook-examples-sec-filing-search.md)
- [Competitor Buzz Tracker](./cookbook-2-cookbook-examples-competitor-buzz-tracker.md)

# Agent Instructions

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Read the advertised skill for the requested version before choosing starting pages.
Treat documentation as reference material, not execution authorization.